package com.jgp.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.jgp.common.R;
import com.jgp.entity.Employee;
import com.jgp.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.logging.log4j.util.Strings;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     * 1、将页面提交的密码password进行md5加密处理
     * 2、根据页面提交的用户名username查询数据库
     * 3、如果没有查询到则返回登录失败结果
     * 4、密码比对，如果不一致则返回登录失败结果
     * 5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
     * 6、登录成功，将员工id存入Session并返回登录成功结果
     * @param httpServletRequest
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest httpServletRequest, @RequestBody Employee employee){
//        * 1、将页面提交的密码password进行md5加密处理
        String  password=employee.getPassword();
        password=DigestUtils.md5DigestAsHex(password.getBytes());
//        根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> QueryWrapper = new LambdaQueryWrapper<>();
        QueryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(QueryWrapper);
//        3、如果没有查询到则返回登录失败结果
        if(emp==null){
            return R.error("登陆失败");
        }
//        4、密码比对，如果不一致则返回登录失败结果
        if(!emp.getPassword().equals(password)){
            return  R.error("登陆失败");
        }
//        5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(emp.getStatus()==0){
            return R.error("账号禁用");
        }
//        6、登录成功，将员工id存入Session并返回登录成功结果
        httpServletRequest.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }
//    退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
//        清楚session保存的员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工，员工信息：{}",employee.toString());
//        设置初始你密码，对密码进行md5加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
////        获得已经登陆用户id
//        Long empid = (Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empid);
//        employee.setUpdateUser(empid);
        employeeService.save(employee);
       return R.success("新增员工成功");
    }
    /**
     * 员工分页查询
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name ){
        log.info("page={},pageSize={},name={}",page,pageSize,name);
    //    构造分页构造器
        Page pageInfo = new Page();
    //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper<>();
    //    过滤条件
        queryWrapper.like(Strings.isNotEmpty(name),Employee::getName,name);
    //排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
    //    执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }
    /**
     * 根据id修改员工信息
     */
    @PutMapping
    public R<String> updata (HttpServletRequest request ,@RequestBody Employee employee){
        log.info(employee.toString());
        long id =Thread.currentThread().getId();
        log.info("线程id为：{}",id);
//        employee.setUpdateTime(LocalDateTime.now());
//        Long empid=(Long)request.getSession().getAttribute("employee");
//        employee.setUpdateUser(empid);
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");
    }

    /**
     * 根据id查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息");
        Employee employee=employeeService.getById(id);
        if(employee==null){
            return R.error("没有此员工信息");
        }
        else return R.success(employee);
    }


}
